Search found 32 matches

by eXne
Sun Nov 10, 2019 5:24 pm
Forum: hardware
Topic: ROM Burner/Programmer
Replies: 7
Views: 336

Re: ROM Burner/Programmer

Yep still have my own build eprom programmer as well.
The userport is really versatile :D
Still works with all the old eproms :D
by eXne
Sun Nov 10, 2019 2:15 pm
Forum: hardware
Topic: ROM Burner/Programmer
Replies: 7
Views: 336

Re: ROM Burner/Programmer

I use this Epromprogrammer as well sofar I'm happy.
You have a look at Aliexpress, will safe you a bit, but longer leadtime.

The thing I'm puzzeling on is how to read the original Acorn proms ie HN613128.
by eXne
Sun Nov 10, 2019 1:45 pm
Forum: hardware
Topic: BBC-B iss.4 PSU odd capacitors
Replies: 1
Views: 103

BBC-B iss.4 PSU odd capacitors

Folks, at the moment I'm working on a BBC-C iss. 4. First point of attention is of course the PSU caps. This is where I was a bit puzzeled as the PSU is different from the ones I normaly have. Acorn BBC PSU Iss 4 marked.jpg C1,C2 and C9 are marked. Normally you expect the yellowish square ones but n...
by eXne
Sun Nov 10, 2019 9:24 am
Forum: acorn atom and system
Topic: Yarrb - redesigned
Replies: 54
Views: 1693

Re: Yarrb - redesigned

Folks, fine pitch smd components soldering is done either with hot air but applying solder on the pads is a tricky one. Normally a stencil is used as applying the solding by hand is difficult. The other way is ensuring all solderpads are clean and even. Next align the smd component and fix it by sol...
by eXne
Sat Oct 12, 2019 3:49 pm
Forum: acorn atom and system
Topic: Yarrb - redesigned
Replies: 54
Views: 1693

Re: Yarrb - redesigned

Add me to the list aswell.
Smd soldering was a while agoo but I’m capable :D
Might go to an old friend to get a miniwave smd tip :D
by eXne
Sat Oct 12, 2019 3:34 pm
Forum: acorn atom and system
Topic: A Website dedicated to the Acorn System Computers
Replies: 42
Views: 2023

Re: A Website dedicated to the Acorn System Computers

I wasn’t aware that Acorn was into 19” rack cards. Looks very nice.
It takes me back to my VME 19” boards time :D
by eXne
Sat Sep 21, 2019 3:35 pm
Forum: acorn atom and system
Topic: just got two Atom's
Replies: 6
Views: 309

Re: just got two Atom's

Hi Paul, sorry for being a bit unclear, Yes I was refering to a Atom DiscPack. I've already sorted it out. The drive needs a +12Vdc and a +5Vdc. The groundwire was broken loose. It was a bit messy so I've jumped to conclusions to soon, my bad :oops: But thanks for reaching out. And yes I'm picking u...
by eXne
Fri Sep 20, 2019 8:29 pm
Forum: acorn atom and system
Topic: Acorn Atom's Value ?
Replies: 9
Views: 599

Re: Acorn Atom's Value ?

@Beebman: you shouldn't worry much longer :D

Cheers,
Etienne
by eXne
Fri Sep 20, 2019 8:03 pm
Forum: acorn atom and system
Topic: just got two Atom's
Replies: 6
Views: 309

Re: just got two Atom's

And the Prophet system. Not sure if it is a true Prophet version as the return key is normal without being larger. A couple of sockets are precission ones an indication of a Prophet version. System memory has been increased and also the video memory. The 5 1/4 FDD has a default powerconnector with o...
by eXne
Fri Sep 20, 2019 7:57 pm
Forum: acorn atom and system
Topic: just got two Atom's
Replies: 6
Views: 309

Re: just got two Atom's

the first Atom was brought back to basic with the help of Multiwizard. The original powersupply has been bypassed. The thing I need to figure out is video. I simply connected the composite video signal from JP4 to a scartplug which connects to my LCD monitor. I only have the Atom prompt if I tilt th...
by eXne
Fri Sep 20, 2019 7:52 pm
Forum: acorn atom and system
Topic: just got two Atom's
Replies: 6
Views: 309

just got two Atom's

Folks, after many years I finally succeeded in aquiring two Atom's incl. a 5 1/4 FDD. As I'm a newbie to Atom's I had quite a discussion with Multiwizard who kindly took the time helping exploring my Atom's. I had an Atom with green text on the back, a Atom with red text on the back, red shift keys ...
by eXne
Mon May 13, 2019 7:53 pm
Forum: hardware
Topic: Help Needed with 6502 Second Processor
Replies: 18
Views: 935

Re: Help Needed with 6502 Second Processor

Dave,

As you’ve spotted a damage wire you might strip the wire around the damage and solder a wire as a bypass.
This way you can easily check if this is the only fault.
You need to be careful and a bit handy with soldering.

Etienne
by eXne
Mon May 13, 2019 7:21 pm
Forum: hardware
Topic: ELITE Combat Dashboard
Replies: 4
Views: 640

Re: ELITE Combat Dashboard

Very nice project, thank you
by eXne
Mon Jan 14, 2019 7:37 pm
Forum: hardware
Topic: fading characters
Replies: 2
Views: 340

Re: fading characters

I need to dig into that part.
I have my beeb hooked through the RGB port to a TV Scart input.
by eXne
Sun Jan 13, 2019 8:36 pm
Forum: hardware
Topic: fading characters
Replies: 2
Views: 340

fading characters

Folks,recently I purchased a BBC from the UK and started the normal process by first checking the PSU caps which needed to be replaced. When I turned the Beeb on I was puzzled as I saw fading characters. Pic-20190113-001.jpg After browsing the forum and google I found nothing similar, or I entered t...
by eXne
Sun Apr 15, 2018 2:54 pm
Forum: hardware
Topic: Scope recommendations
Replies: 17
Views: 1469

Re: Scope recommendations

I use the Siglent SDS1102X, 100MHz, dual channel scope.
As an option I have decoding I2C, SPI, UART's.
Also it offers a 16bit MSO, which is a 16bit logic analyser as an option.
by eXne
Sun Apr 15, 2018 9:05 am
Forum: hardware
Topic: Soldering and Hotair station options
Replies: 38
Views: 2643

Re: Soldering and Hotair station options

I use either Weller or Pace smd rework stations for many years now and I’m still happy. Maybe a bit higher priced but it is worth it. I started with the 1206 components and QFP opackages but the increase number of pins and decrease of pin space are going fast. So you really need the proper soldering...
by eXne
Mon Oct 30, 2017 6:44 pm
Forum: hardware
Topic: EPROM Programmer collectors roll call
Replies: 49
Views: 8163

Re: EPROM Programmer collectors roll call

I’ve build my own Epromprogrammer.
It’s attached the userport.

Etienne
by eXne
Mon Oct 23, 2017 4:04 pm
Forum: hardware
Topic: 6502 second processor poll
Replies: 40
Views: 3220

Re: 6502 second processor poll

Got both an original 6502 2nd proc and the copro
by eXne
Thu May 25, 2017 4:36 pm
Forum: hardware
Topic: 6809 experiments
Replies: 137
Views: 12144

Re: 6809 experiments

I probably have a couple of 6809 CPU laying around which I can donate
by eXne
Thu May 25, 2017 3:56 pm
Forum: hardware
Topic: Possibly Unscanned Acorn Circuit Diagrams - Need Help!
Replies: 18
Views: 2469

Re: Possibly Unscanned Acorn Circuit Diagrams - Need Help!

I do have a color A3 scanner and access to a A0 scanner.
However I'm not in the London area but in Haarlem, The Netherlands.
Sending the schematics is not an option I guess?

Etienne
by eXne
Fri Dec 23, 2016 10:36 am
Forum: hardware
Topic: Pcb board making
Replies: 30
Views: 3935

Re: Pcb board making

or http://www.digikey.com/schemeit/project/
a pcb design is also possible.
by eXne
Fri Dec 23, 2016 10:35 am
Forum: hardware
Topic: Pcb board making
Replies: 30
Views: 3935

Re: Pcb board making

by eXne
Sun Nov 20, 2016 12:55 pm
Forum: hardware
Topic: datasheet Philips X3114 FDD
Replies: 0
Views: 342

datasheet Philips X3114 FDD

Folks,

wondering if somebody might have a datasheet for this Philips FDD.
I've a shortage in the 12V circuit and this will help me finding the faulty component.

And yes google didn't turned up anything as the drive is from the eighties :D

Thanks,

Etienne
by eXne
Wed Oct 05, 2016 7:06 pm
Forum: hardware
Topic: Finding a genuine Sandisk 512MB card
Replies: 21
Views: 2693

Re: Finding a genuine Sandisk 512MB card

I've one Sandisk 128mb card and a couple of Transcend 512mb card gathering dust. I'm more than happy to send them if they might work for you,
by eXne
Wed Oct 05, 2016 6:47 pm
Forum: off-topic
Topic: Windows 10....
Replies: 175
Views: 17609

Re: Windows 10....

I've had no problems running W10. My oldest cpu is an i7 920 on a Gigabyte MB. Even the anniversary update caused no problems.
by eXne
Mon Sep 12, 2016 7:27 pm
Forum: for sale / freebies
Topic: Offered: Matchbox sized 6502 / Z80 / 6809 Co Pro
Replies: 603
Views: 72491

Re: Offered: Matchbox sized 6502 / Z80 / 6809 Co Pro

After PMing Alex back with an answer, expecting to post Monday, I'm going to need to hold of another day or two. I've found a slight issue with some of the components whilst testing and I've decided to order replacements. Order is already placed and they should arrive Tuesday upon which I should be...
by eXne
Sat Aug 27, 2016 4:23 pm
Forum: introduce yourself
Topic: Hi!
Replies: 13
Views: 1570

Re: Hi!

Welkome Jander
by eXne
Thu Aug 25, 2016 7:19 am
Forum: for sale / freebies
Topic: Offered: Matchbox sized 6502 / Z80 / 6809 Co Pro
Replies: 603
Views: 72491

Re: Offered: Matchbox sized 6502 / Z80 / 6809 Co Pro

Hi Flynnjs,

If you need help assembling, soldering, programming, buying etc. please let me know.

Regards,

Etienne
by eXne
Fri May 20, 2016 6:02 pm
Forum: introduce yourself
Topic: Greetings from Haarlem, The Netherlands
Replies: 13
Views: 1743

Re: Greetings from Haarlem, The Netherlands

Thx folks for all your kind reactions